CVE-2020-26869
mediumpriority · track · 31EPSS 0.017 · 77 %ileEUUSEPSS · scored 2026-10-27
ARC Informatique PcVue prior to version 12.0.17 is vulnerable to information exposure, allowing unauthorized users to access session data of legitimate users. This issue also affects third-party systems based on the Web Services Toolkit.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedPcVuecisa_csaf_ot
ARC Informatique recommends upgrading PcVue to v12.0.17. Contact PcVue Support to receive instructions on downloading and installing the latest software version.
https://www.pcvuesolutions.com/index.php/support-request-en?view=form - MitigationPcVuecisa_csaf_ot
Harden firewall configuration by ensuring that incoming connections on the corresponding port are authorized only if initiated by the IIS Web Server process. The listening port is configurable (default 8090) and may have been changed on the system using the Application Explorer.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-20-308-03ARC Informatique PcVue (Update A)2020-11-03icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code, expose sensitive data, and prevent legitimate users from connecting to PcVue services.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (15)
External citations — patches, advisories, analysis.
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-017-session-information-exposure-in-arc-informatique-pcvue/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-26869cnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.3796/cnnvd
- https://www.pcvuesolutions.com/index.php/support-a-services/resources/security-alerts-95138cnnvd
- https://www.pcvuesolutions.com/securitycnnvd
- https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1cnnvd
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-017-session-information-exposure-in-arc-informatique-pcvue/enisa_euvd
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